Overview

Our supplies are engineered for the demand of the oil and gas industry. With a range of high-quality Silica Sand and Silica Flour to ensure outstanding oilwell cementing performance

Is it possible to use silica sand in cement? Oil-well cement is specifically designed for grouting oil wells, commonly known as oil-well cementing.

These cements are made by mixing Portland or blended cement with certain additives. Due to the high temperatures and pressures found deep within oil wells, oil-well cement must be slow-setting and durable.

Silica sand

(1.18mm to 600 microns in size) can be used in making concrete mix as a partial replacement for fine aggregate. After processing, the sand may be dried, and some application requires it to be ground in a ball mill to produce very fine materials. It is of white, brown or pinkish colour due to iron oxide.

Silica sand (often called industrial sand for this purpose) is the main structural component in several construction products. Flooring, mortars, cement, roofing shingles, asphalt, and other industrial materials use silica to improve durability and structural integrity.

Silica Flour

Silica Flour is powdered sand that inhibits strength retrogression in oil-well cement at elevated temperatures. As a cement extender, it prevents cement sedimentation by increasing low-shear viscosity. Silica Flour is very stable and is not susceptible to fire, explosion or decomposition.

The finely divided dust may cause eye and respiratory irritation. Use good industrial hygiene practices and wear goggles and a dust mask when handling the material.

Silica Flour adjusts the phase transformation of the cement-water mixture at high temperatures, which helps oil-well cement maintain its compressive strength and low permeability.

Silica Flour has been widely used in cementing SAGD wells in combination with refractory-type cement. It is compatible with all types of cement and commonly used additives such as retarders, friction reducers, fluid loss additives, weighting and lost-circulation materials.

Benefits

• Remarkable bonding properties for reliable and durable cement formations.
• Validated compressive strength for zonal isolation.
• Compatible with cement additives to reduce wellbore instability.
• High-pressure, high-temperature tolerance.

For more information and how Alliance Silca can help with custom products contact us today.